<html>
<head>
  <title>水果售价</title>
  <style>
    table{background-color: aquamarine;border: solid 2px silver;}
   .bordered tr td {border:solid 2px #000000; }
  </style>
</head>
<body>
<?php
header('content-type:text/html;charset=utf-8');
const  DISCOUNT=0.8;
$fruit1="香蕉";
$fruit2='苹果';
$fruit3='橘子';
  $fruit1_num=2;
$fruit2_num=1;
$fruit3_num=3;//商品数量
  $fruit1_price=7.99;
$fruit2_price=6.89;
$fruit3_price=3.99;//商品价格
$fruit1_total=$fruit1_num*$fruit1_price;
$fruit2_total=$fruit2_num*$fruit2_price;
$fruit3_total=$fruit3_num*$fruit3_price;//商品总值
$total=($fruit1_total+$fruit2_total+$fruit3_total)*DISCOUNT;
//
$str="<table class='bordered'>";
$str.="<tr><td>商品名称</td><td>购买数量</td><td>商品价格（元/斤）</td></td></tr>";
$str.="<tr><td>$fruit1</td><td>$fruit1_num</td><td>$fruit1_price</td></tr>";
$str.="<tr><td>$fruit2</td><td>$fruit2_num</td><td>$fruit2_price</td></tr>";
$str.="<tr><td>$fruit3</td><td>$fruit3_num</td><td>$fruit3_price</td></tr>";
$str.="<tr><td colspan='3'>商品折扣：<span>".DISCOUNT."</span></td></tr>";
$str.="<tr><td colspan='3'>打折后的总价格：{$total}元</td></tr>";
$str.="</table>";
//
echo  $str;
?>
</body>
</html>



